CN212621375U

CN212621375U - Test light box

Info

Publication number: CN212621375U
Application number: CN202020922990.5U
Authority: CN
Inventors: 常辛茹; 凃佑苍
Original assignee: Triple Win Technology Shenzhen Co Ltd
Current assignee: Triple Win Technology Shenzhen Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-26
Anticipated expiration: 2030-05-27
Also published as: US20210372880A1; US11674866B2

Abstract

A test light box for optically testing an object, the test light box comprising: the device comprises a box body, a light source, a drawing film, a shade and a base, wherein the light source is arranged in the box body; the drawing film is arranged on one side of the light source; the shade is arranged on one side, far away from the light source, of the drawing film, wherein the shade comprises a transparent area and a shielding area; the base is arranged in the box body and located on one side, away from the light source, of the shade, and the base is used for bearing the object to be tested. The application provides a test light box, through the light source with set up between the base the shade prevents that unnecessary light from shining and projecting behind the reflection of light thing the drawing film avoids producing the influence to the test result of determinand to improve the accuracy of test result.

Description

Test light box

Technical Field

The application relates to the field of optical testing, in particular to a testing light box.

Background

With the progress and development of science and technology, electronic products such as mobile phones and tablet computers are provided with optical lenses, and in the actual production process, in order to ensure the photographing quality of the optical lenses, the optical lenses must be tested before leaving the factory.

An optical lens is usually placed in a test light box for testing, light emitted by a light source irradiates a drawing, and the optical lens shoots the drawing. However, when the drawing is optically illuminated, other objects in the test light box are also illuminated, for example, the side wall of the test light box, accessories (such as a turntable, screws, and a circuit board) inside the test light box, and a glass carrier for carrying the drawing, and the like, while some other illuminated objects may have a reflection phenomenon due to the limitation of the material, the reflected light is illuminated to the drawing or the glass carrier, and an image finally captured by the optical lens includes the reflected light to cause a ghost or other optical phenomena, which greatly affects the accuracy of the optical lens test.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a testing light box for improving the accuracy of optical lens testing to solve the above problems.

A test light box for optically testing an object, the test light box comprising: the device comprises a box body, a light source, a drawing film, a shade and a base, wherein the light source is arranged in the box body; the drawing film is arranged on one side of the light source; the shade is arranged on any side of the drawing film far away from or close to the light source, and comprises a transparent area and a shading area; the base is arranged in the box body and located on one side, away from the light source, of the shade, and the base is used for bearing the object to be tested.

In an embodiment of the present application, the transparent region is hollowed out.

In an embodiment of the present application, the transparent region is made of a transparent material.

In an embodiment of the present application, the drawing film includes a pattern region and a non-pattern region, and the transparent region at least overlaps with a portion of the pattern region.

In one embodiment of the present application, the mask region coincides with at least a portion of the non-pattern region.

In an embodiment of the present application, the mask is attached to the box.

In an embodiment of the application, the shade is mechanically fixed in the box.

In an embodiment of the present application, the test light box further includes an objective table, the objective table set up in the box and with the light source sets up apart from one another, the objective table is transparent, the drawing film is arranged in the surface of objective table.

In one embodiment of the present application, the stage includes the transparent region and the shielded region.

In an embodiment of the present application, the test light box further includes a light diffusion sheet, the light diffusion sheet is disposed on the stage, and the light diffusion sheet is located on one side of the drawing film close to the light source.

The application provides a test light box, through the light source with set up between the base the shade prevents that unnecessary light from shining and projecting behind the reflection of light thing the drawing film avoids producing the influence to the test result of determinand to improve the accuracy of test result.

Drawings

Fig. 1 is a schematic structural diagram of a test light box according to an embodiment of the present application.

Fig. 2 is a schematic structural view of the drawing sheet shown in fig. 1.

Fig. 3 is a schematic view of a portion of the drawing sheet shown in fig. 2 without masking.

Fig. 4 is a schematic structural view of the mask shown in fig. 1.

Fig. 5 is a schematic view of the mask shown in fig. 4 and the paper film shown in fig. 2 superposed on each other.

Description of the main elements

Test light box 100

Box 10

Door 12

Light source 20

Light diffusion sheet 30

Drawing film 40

Pattern area 42

Non-patterned areas 44

Shade 50

Transparent region 52

Shaded region 54

Object stage 60

Base 70

Test object 80

Region I

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes all and any combination of one or more of the associated listed items.

In various embodiments of the present application, for convenience in description and not limitation, the term "coupled" as used in the specification and claims of the present application is not limited to physical or mechanical connections, either direct or indirect. "upper", "lower", "above", "below", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Referring to fig. 1, the present embodiment provides a test light box 100, wherein the test light box 100 is used for performing an optical test on an object 80 to be tested. The object 80 has an optical lens, and the object 80 includes, but is not limited to, a camera and an optical detection instrument.

The test light box 100 includes a box body 10, a light source 20, a light diffusion sheet 30, a drawing film 40, a mask 50, a stage 60, and a base 70.

The case 10 is used for accommodating the light source 20, the light diffusion sheet 30, the drawing film 40, the shade 50, the stage 60 and the base 70, and the case 10 is also used for accommodating the object 80 to be measured.

In this embodiment, the box 10 is a hollow cuboid, the material of the box 10 includes an opaque material, so as to prevent the light inside the box 10 from penetrating into the box 10 through the box 10 or the light outside the box 10 during the test of the test light box 100, so as to interfere with the test of the object 80 to be tested. The box 10 has a door 12 that can be opened or closed to facilitate the handling of objects and testing of the dut 80, and the box 10 is a sealed and light-tight space.

Preferably, the interior of the case 10 is black in color.

The light source 20 is fixedly disposed at one side of the inside of the box 10, the light source 20 may be located above or below the box 10, and the light source 20 is used for emitting light.

The stage 60 is located at one side of the light source 20, and the stage 60 is disposed apart from the light source 20. The stage 60 is made of a transparent material, such as glass. The stage 60 is used to carry the light diffusion sheet 30, the drawing film 40, and the mask 50.

Specifically, the light diffusion sheet 30, the drawing film 40, and the mask 50 are sequentially stacked on the surface of the stage 60, wherein the light diffusion sheet 30 is located on one side of the drawing film 40 close to the light source 20, and the mask 50 is located on either side of the drawing film 40 away from or close to the light source 20. In this embodiment, the mask 50 is located on the side of the drawing sheet 40 away from the light source 20.

The light diffusion sheet 30 is disposed at a distance from the light source 20, and the light diffusion sheet 30 is used for adjusting the light emitted from the light source 20 to refract, reflect or scatter the light in different directions, so as to form a bottom plate with uniform brightness, and realize uniform and controllable light entering the object 80 to be measured.

Referring to fig. 2 and 3, the drawing film 40 is provided with a pattern region 42 and a non-pattern region 44, the pattern region 42 is opaque or not completely transparent, and the non-pattern region 44 is transparent. The light passes through the non-pattern area 44 to form a pattern corresponding to the drawing film 40.

Referring to fig. 4, the mask 50 includes a transparent region 52 and a shielding region 54, the transparent region 52 is used for allowing part of the light to pass through, and the shielding region 54 is used for preventing the excessive light from passing through. The mask 50 may be provided by, but not limited to, being hollow and partially transparent.

In one embodiment, the shielding region 54 is made of a non-transparent material, and the transparent region 52 is hollow, i.e. the transparent region 52 is not made of a material. In another embodiment, the mask region 54 is made of a non-transparent material, and the transparent region 52 is made of a transparent material.

The material of the mask 50 in the shielding region 54 has a low reflectivity, including but not limited to metal material, wood, etc. In one embodiment, the mask 50 is a piece of paper with a hollow pattern.

The mask 50 can be flexibly sized, for example, depending on the size of the test light box 100, the drawing sheet 40, or the stage 60. Preferably, the size of the mask 50 is greater than or equal to the size of the stage 60.

The mask 50 may be disposed in the test light box 100 in various manners, including but not limited to, adhering the mask 50 in the box 10, fixing the mask in the box 10 by a mechanical fixing manner, marking the mask 50 on the transparent stage 60 (i.e., the stage 60 includes the transparent area 52 and the shielding area 54), or designing the drawing film 40 and the mask 50 as an integral structure, which is only an example and not limited thereto.

The mask 50 sets the transparent area 52 and the shaded area 54 according to the pattern area 42 and the light required to pass through the drawing film 40. Wherein the transparent region 52 is at least partially coincident with the non-pattern region 44, the mask region 54 is at least partially coincident with the non-pattern region 44, light passes through the region where the transparent region 52 is coincident with the non-pattern region 44, and light cannot pass through the mask region 54.

Referring to fig. 2 and 3 again, in one embodiment, the drawing film 40 includes the pattern area 42, wherein the pattern area 42 is opaque, and the area of the pattern area 42 occupies 12% of the area of the drawing film 40, i.e., the transparent area of the drawing film 40 occupies 88% of the area of the drawing film 40. And (4) testing according to the testing requirement, wherein the area I in the drawing film 40 is not required to be shielded, so that a transparent area 52 corresponding to the area I is designed (see fig. 4). Referring to fig. 5, the mask 50 and the drawing film 40 are stacked, and the area of the light passing through the drawing film 40 and the mask 50 accounts for 1.3% of the area of the drawing film 40, so that the light energy received by the reflector can be greatly reduced, and the light reaching the reflector can be reflected to the drawing film 40, thereby reducing the imaging degree of the reflector on the stage 60 and/or the drawing film 40, and preventing the test result of the object to be tested 80 from being affected. The light reflecting object includes an inner wall of the box 10, a fitting in the box 10, the object 80 to be measured, and the like.

The base 70 is located on a side of the stage 60 away from the light source 20, for example, when the light source 20 is located above the interior of the housing 10, the base 70 may be located above the interior of the housing 10; when the light source 20 is located below the inside of the case 10, the base 70 may be located above the inside of the case 10. The base 70 is disposed apart from the stage 60, and the base 70 is used for bearing the object 80. The object 80 is used for shooting the drawing film 40 irradiated by the light source 20, and the quality of the object 80 is detected according to the quality of the picture shot by the object 80. The application provides a test light box 100, through light source 20 with set up between the base 70 shade 50 prevents that unnecessary light from shining and projecting behind the reflection of light thing drawing film 40 avoids producing the influence to the test result of determinand 80 to improve the accuracy of test result.

Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.

Claims

1. A test light box is used for optically testing an object to be tested and is characterized in that,

the test light box includes:

a box body;

a light source disposed in the case;

the drawing film is arranged on one side of the light source;

the shade is arranged on any side of the drawing film far away from or close to the light source, and comprises a transparent area and a shielding area; and

the base is arranged in the box body, the base is located on one side, away from the light source, of the shade, and the base is used for bearing the object to be tested.

2. The test light box of claim 1, wherein the transparent region is hollowed out.

3. The test light box of claim 1, wherein the transparent region is made of a transparent material.

4. The test light box of claim 1, wherein the drawing film includes a pattern area and a non-pattern area, the transparent area coinciding with at least a portion of the pattern area.

5. The test light box of claim 4, wherein the masked area coincides with at least a portion of the non-pattern area.

6. The test light box of claim 1, wherein the mask is affixed in the box body.

7. The test light box of claim 1, wherein the shroud is mechanically secured in the box body.

8. The test light box of claim 1, further comprising a stage disposed in the box body and spaced from the light source, the stage being transparent, the drawing sheet being disposed on a surface of the stage.

9. The test light box of claim 8, wherein the stage comprises the transparent region and the obscured region.

10. The test light box of claim 9, further comprising a light diffuser disposed on the stage on a side of the drawing film adjacent the light source.